Except for all the companies that accidentally leak it to, all the companies that grab it in breaches, all the companies that find it sitting in S3, all the companies they sell it to, etc.
All the more reason to consider the HTC Vive or Steam Index if interested in being an early adapter of VR where their achievements can be more collaborative.
Side note regarding Portal and other "social hardware", I can't imagine there being user-friendly privacy toggles when facebook owns the complete stack..
Valve has done a pretty good job at standardizing VR tech with OpenVR/SteamVR. All of the headsets except the oculus seem to have really good hardware compatibility. The vive controllers can be used with the pimax hmd, etc.
Facebook seems to be trying really hard to create a lockin with the oculus, if you buy games on the oculus store, you are now forever locked in to only buying oculus hardware from now on.
Thankfully you can use Oculus devices (or at least, the Quest) with the new Link feature to turn the headset into a sort of external display, which is then compatible with SteamVR.
Honestly it's the biggest selling point of the Quest for me, in addition to being able to hack around on it through an adb shell.
I doubt this will get much in the way of mainstream penetration. You're never going to see any competitive phone installations of this. It'll probably mostly be for things like portal. I doubt they'd be successful in doing a chromebook competitor either given how horribly tarnished their name is, but it does at least seem more realistic than a phone.
You kidding? Free phones with Facebook OS built in all funded by selling every scrap of your data? Third world countries are gonna eat that up to begin with, and then it'll spread all over.
Mark Lucovsky is pretty legendary! Every Windows exe starts with the two bytes ML!
EDIT: As others pointed out its actually another Mark, MZ. Lucovsky was the Mark, who Steve Ballmer was throwing chairs around when he said to leave for Google. Still legendary. :)
Privacy? I expect some amazing detailed & intrusive data gathering.